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Patented' May 4,1920.

uvre/vra? VEN/Cf 14H /f/f//LR v. A. H.. KAHLER. HALF SPRAY SERINKLER.`

`APPLICATION FILED NOV- Z 11911.

' IINITED STATES VENICE A. II. KAIILER, oF rAsAnENA, CALIFORNIA.

HALF-SPRAY SIBINKLER.

Specication of Letters Patent.

Patented May 4., 1920.

Application lad November 7, 1917. Serial No. 200,8.'8.Y

To all whom t may concern:

Be it known that I, VENICE A. I-I. KAHLER, a citizen of the United States, residing at Pasadena, in the county of LosAngeles and State of California, have invented new and useful Improvements in Half-Spray Sprinklers, of which the following isa specification.

rIhis invention relates to a lawn sprinkler and particularly pertains to `a side spray sprinkler.

In the use of lawn sprinklers which are permanently set within the sod of the lawn, it is often impossible to water all of the grass along theedges of the sidewalk and other boundary lines without throwing considerable water over an area which is not intended to besprinkled. It is the principal object of this invention to provide a simple sprinkler nozzle which may be positioned close to a boundary line and will throw a spray upon the lawn without a waste of water or the production of a spray that is not required.

Another object of this invention is to provide a sprinkler head which is simple in its construction, is formed of few parts adapted to be assembled in an easy manner and which will produce a desirable sprinkler spray.

Another object of this invention is to provide a sprinkler which will supply a spray of water upon the ground from the edge of the sprinkler outwardly over the entire area to be sprinkled.

It is the further object of this invention to provide an auxiliary regulating means for permitting the individual nozzles of a sprinkling system to be regulated independent of the main water spray nozzle.

Other objects will appear hereinafter.

The invention is illustrated, by way of eX- ample, in the accompanying drawings in which:

Figure 1 is a view in plan illustrating the sprinkler nozzle, particularly showing the spray orifice formed in the top thereof.

Fig. 2 isa view in transverse' section and elevation as seen on the line 2 2 of Fig. 1.

Fig. 3 is a view., in plan illustrating, in a diagrammatical manner, the applicationV of the sprinklers and the manner in which their water ,supply is controlled.

Fig. 4 is a View in perspective illustrating another form of the cap for the sprinkler head. y

Referring more particularly to the drawings, 10 indicates a vertically disposed water supply pipe upon which is mounted a cap 11. This cap is preferably formed with hexagonal sides to permit it to be screwed to the end of the pipe. An enlarged threaded portion 12 is formed at the end of said cap and is adapted to receivey aw spray plate 13. This plate is formed with a centrally threaded bore which extends upon the threaded end of the cap and has a sprayoriice 14 formed through it. The orifice 14, as here shown, extends approximately one-half way around the spray plate and forms an arcuate opening which communicates with a supply opening 15 formed through the center of the cap. A deilector lug 16 is formed upon the plate and causes kthe water passing kupwardly through the openingl to strike its lower face and be deflected' through the orifice 14. This orifice 'may be semi-circular or segmental as shown in Fig. `1. In ordery that the volume of water passing through the nozzle may be easily regulated, an adjusting screw 17 is threaded into the side of the cap and is formed with a conical end which projects into the passage-way 15. It will be understood that as this screw is advanced and retracted the volume of water will be easily and accurately regulated.

lhen it is desired to spray square plots of ground, the nozzle plate 13 is used, it having corner spray grooves 20 along the under side of a spray lug 16. These grooves allow an increased pressure of water to ber thrown, as indicated at the lower left hand of Fig. 3, in a manner evident.

In operation, the nozzles are assembled, as indicated by the numeral 19 and mounted upon supply pipes 10 which in turn are secured to horizontally extending supply pipes 20. Valves 21 are provided to control the flow of water to the supply pipes 2O and thereby simultaneously ycontrol the flow of water to each ofthe nozzles. The nozzles are mounted with their arcuate orifices 14 away from the boundary or sidewalk,` as the case may be. When water is delivered to the nozzles it will then pass upwardly through the supply pipe 10 and the passageway 15 in the cap striking the under face of the deflector lug 16 thereafter spraying out through the orifice 14. This will produce a' spray which will not fall upon the walk. In case it is desired to regulate the nozzles separatelyythe screw 17 may be adjusted, as previously described.

It will thus be seen that the sprinkler nozzle here provided is Without complication as to its` construction and may be readily assembled to produce the spray action decribed.

Vhile I have shown the preferred constr'i'lction of my side spray sl'n'inliler as now known to ine; it will be understood that various changes in' the combination; construction and arrangement ot parts may be made by those skilled in the art Without de parting from the spirit of my invention.

I claim: l

l. A sprinkler head comprising a base adapted to bescrewed upon the end of a supply pipe and having a central opening and having an enlarged externally screwthreaded upper' end; a spray' plate adapted to screw upon said enlarged end and having an orifice extending approximately onefhal'f way around the plate7 said oriii'ce being semi-circular in plan; and a deflector lug extending from the' center of the plate into the center of the orifice at its straight side.

2L A sprinkler head comprising a cap adaptedl to -be screwed upon the end of a supply pipe cand having a small central opening and having" an enlarged externally screw-threaded upper end; a set screw tapped horizontally into the cap and extending into the central opening for regulating the size of the opening; a spray plate adapted to be screwed upon the upper end of the cap and having an orilice semi-circular in plan; and a deflector lug extending from the center of the plate into the center of the orifice at its straight side.

3. A sprinkler head comprising a cap adapted to be screwed upon a supply pipe and having a small central opening and an enlarged externally screw-threaded upper end; a spray plate adapted to be screwed upon the upperend of the cap and having a semi-cinular orifice; and a deiiertor lug extending rom the'center of the plate into the center of the orifice at itsstraight side, there being spray grooves along the under side ot the deflector lug.

It. A sprinkler head comprising a base adapted to be screwed upon the end of a supply pipe and having a centralA opening and having an enlarged externally screwthreaded upper end; a spray plate adapted to screw upon said enlarged end and having an orifice extending partially around the plate; said orifice being substantially semicircular in plan; and a' deieiiitor lug extending from substantially the center of the plate into substantially the center of the orifice at its straight side.

In testimony whereof I have signed my name to this speciiication.

VENICE A. II. KAHLER. 

